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首页> 外文会议>International Symposium on Southeast Asian Water Environment >Water Quality Monitoring and Non-Destructive Suspended Sediment Size Analysis in the Chaktomuk Junction-Tonle Sap Lake Corridor, Cambodia
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Water Quality Monitoring and Non-Destructive Suspended Sediment Size Analysis in the Chaktomuk Junction-Tonle Sap Lake Corridor, Cambodia

机译：柬埔寨Chaktomuk Junction-Tonle Sap Hand Lake Hake Wake Lake Handiver中的水质监测和无损悬浮沉积物尺寸分析

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A network of Hydrolab Datasonde 4a's was operated in the flooded forest fringe of the Tonle Sap Lake, near Pursat, and the Chaktomuk Junction at Phnom Penh, between 8/1/05 and 1/22/06. Samples also were collected for non-destructive image analysis of suspended sediment size. The Hydrolabs successfully tracked the freshwater flood pulse and expansion of the black water area. The freshwater was fully oxygenated in the upper water column of the lake while the black water was nearly anoxic. A meter up from the lake bed, dissolved oxygen remained near 0 mg/L throughout the monitoring period, while turbidity and conductivity were significantly greater and pH significantly less than in the upper water column. Dissolved oxygen, conductivity, and turbidity were greater in the Chaktomuk Junction compared to the lake due to the hydraulics of the system. Impact from Phnom Penh's waste discharge was identified through the conductivity signal. Suspended sediment size was fine and not highly flocculated; median diameters (% by number) were in the range of 2.86-4.16 microns.
机译：HydroLab DataSonde 4A网络在Tonle Sap Lake的洪水林边缘，靠近Purrat，Phnom Penh的Chaktomuk Junction在8/1/05和22/06之间进行操作。还收集样品，用于悬浮沉积物大小的非破坏性图像分析。水解成功地跟踪了黑水区淡水泛脉冲和膨胀。淡水在湖的上水柱中完全含氧，而黑水几乎是缺氧。在湖床上，溶解氧含量在监测期内溶解氧气仍然接近0 mg / L，而浊度和电导率明显大，pH值明显小于上水柱。由于系统的液压和湖泊相比，在Chaktomuk交界处溶解氧气，导电性和浊度更大。通过电导信号识别来自金边废物排放的影响。悬浮沉积物大小精细，不高度絮凝;中位直径（数量％）在2.86-4.16微米的范围内。

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